/* 1. GLOBAL VARIABLES */
:root {
    --primary-color: #6c5ce7;
    --secondary-color: #a29bfe;
    --bg-color: #0f0c29;
    --glass-bg: rgba(255, 255, 255, 0.1);
    --text-color: #ffffff;
    --success-color: #00b894;
    --warning-color: #fdcb6e;
    --danger-color: #ff7675;
}

/* 2. RESET */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background: linear-gradient(135deg, #0f0c29, #302b63, #24243e);
    color: var(--text-color);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 40px 20px;
    
    /* THE FIXES: */
    line-height: 1.6; /* Adds breathing room between text lines */
    letter-spacing: 0.5px; /* Adds tiny space between letters for clarity */
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 30px;
    text-shadow: 0 4px 10px rgba(0,0,0,0.5);
    text-align: center;
    letter-spacing: 1px;
}

h2, h3 { margin-bottom: 25px; font-weight: 600; line-height: 1.4;}

/* 3. GLASSMORPHISM CARDS - With Hover Motion */
#grade-calculator, .table-container, #result-area, #profile-card, .chart-container, #target-calculator {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 16px;
    padding: 20px;
    margin-bottom: 25px;
    width: 100%;
    max-width: 800px;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

/* Subtle Lift Effect on Hover */
#grade-calculator:hover, #target-calculator:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px 0 rgba(0, 0, 0, 0.4);
}

/* 4. LAYOUT UTILITIES */
.settings-row {
    margin-top: 15px; /* More space from the name input */
    display: flex;
    gap: 15px;
    align-items: center;
    flex-wrap: wrap;
}

.system-select-container {
    display: flex;
    align-items: center;
    gap: 5px;
    flex: 1;
    min-width: 120px;
}

.input-row {
    display: flex;
    gap: 20px; /* Increased from 15px */
    width: 100%;
    margin-bottom: 25px; /* Increased bottom space */
    flex-wrap: wrap;
}

/* 5. INPUTS & BUTTONS */
input, select {
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--secondary-color);
    color: white;
    
    /* THE FIXES: */
    padding: 15px 20px; /* Taller and wider internal spacing */
    margin-bottom: 5px; /* Tiny buffer just in case they wrap */
    
    border-radius: 12px; /* Softer corners */
    font-size: 1rem;
    flex: 1;
    min-width: 120px;
    transition: all 0.3s ease;
}

input:focus, select:focus {
    outline: none;
    border-color: var(--primary-color);
    background: rgba(0, 0, 0, 0.6);
}

select option {
    background-color: #0f0c29;
    color: white;
}

button {
    background-color: var(--primary-color);
    color: white;
    padding: 12px 25px;
    border: none;
    border-radius: 8px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
    box-shadow: 0 4px 15px rgba(108, 92, 231, 0.4);
}

button:hover {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(108, 92, 231, 0.6);
}

.action-bar {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
    justify-content: center;
}

.action-btn { background: var(--secondary-color); box-shadow: none; }
.delete-mode { background: var(--danger-color); opacity: 0.9; box-shadow: none; }

/* 6. TABLE */
.table-container {
    overflow-x: auto; 
    padding: 0; 
    background: transparent; 
    border: none;
    box-shadow: none;
}

table {
    width: 100%;
    border-collapse: collapse;
    min-width: 600px; 
    background: rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    overflow: hidden;
}

th, td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

th {
    background-color: rgba(0, 0, 0, 0.3);
    color: var(--secondary-color);
    text-transform: uppercase;
    font-size: 0.8rem;
    font-weight: bold;
}

/* 7. RESULT AREAS */
#result-area {
    text-align: center;
    border: 2px solid var(--success-color);
}

#gpaScore {
    color: var(--success-color);
    font-size: 2.2rem;
    font-weight: 800;
}

.status-green { color: var(--success-color) !important; border-color: var(--success-color) !important; }
.status-orange { color: var(--warning-color) !important; border-color: var(--warning-color) !important; }
.status-red { color: var(--danger-color) !important; border-color: var(--danger-color) !important; }

/* Animations */
@keyframes pop { 0% { transform: scale(1); } 50% { transform: scale(1.15); } 100% { transform: scale(1); } }
.animate-pop { animation: pop 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275); }

/* 8. PROFILE CARD */
#profile-card {
    display: flex;
    align-items: center;
    gap: 20px;
}

.profile-image-container {
    width: 90px;
    height: 90px;
    cursor: pointer;
    flex-shrink: 0;
    position: relative;
}

#profile-img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--primary-color);
    transition: transform 0.3s;
    box-shadow: 0 0 15px rgba(108, 92, 231, 0.5);
}

#profile-img:hover { transform: scale(1.05); }
#imageInput { display: none; }

.profile-details {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 8px;
    width: 100%;
}

.transparent-input {
    background: transparent;
    border: none;
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
    padding: 5px;
    width: 100%;
    border-bottom: 2px solid transparent;
    transition: border-bottom 0.3s;
}
.transparent-input.small {
    font-size: 1rem;
    color: var(--secondary-color);
    font-weight: 400;
}
.transparent-input:focus {
    background: transparent;
    outline: none;
    border-bottom: 2px solid var(--primary-color);
}

/* 9. SUMMARIES & CHART */
.summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 15px;
    width: 100%;
    max-width: 800px;
    margin-bottom: 30px;
}

.summary-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 12px;
    padding: 15px;
    text-align: center;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.summary-card:hover { 
    transform: translateY(-5px) scale(1.02); 
    background: rgba(255,255,255,0.08); 
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

.summary-sem { font-size: 0.8rem; color: var(--secondary-color); text-transform: uppercase; letter-spacing: 1px; }
.summary-gpa { font-size: 1.6rem; font-weight: bold; margin-top: 5px; }

.chart-container { height: 320px; display: flex; justify-content: center; }

/* 10. TARGET CALCULATOR */
#target-calculator {
    background: rgba(253, 203, 110, 0.05); 
    border: 1px solid var(--warning-color);
}
.target-subtitle { font-size: 0.9rem; color: var(--secondary-color); margin-bottom: 15px; }
#targetCurrentCGPA { color: white; font-weight: bold; }
.target-inputs { display: flex; gap: 10px; flex-wrap: wrap; }
.target-btn { background: var(--warning-color); color: #0f0c29; box-shadow: 0 4px 15px rgba(253, 203, 110, 0.3); }
#targetResult { margin-top: 15px; font-weight: bold; font-size: 1.1rem; color: white; text-shadow: 0 2px 4px rgba(0,0,0,0.5); }

.delete-btn {
    background: transparent;
    color: var(--danger-color);
    border: 1px solid rgba(255, 71, 87, 0.3);
    padding: 5px 10px;
    border-radius: 6px;
    cursor: pointer;
    box-shadow: none;
}
.delete-btn:hover { background-color: var(--danger-color); color: white; }

.footer { text-align: center; color: rgba(255,255,255,0.3); font-size: 0.8rem; padding-bottom: 20px; margin-top: 20px;}

/* --- MOBILE RESPONSIVENESS --- */
@media (max-width: 768px) {
    #profile-card { flex-direction: column; text-align: center; }
    .settings-row { flex-direction: column; }
    .system-select-container { width: 100%; }
    #grade-calculator .input-row { flex-direction: column; gap: 10px; }
    input, select, button { width: 100%; }
    h1 { font-size: 1.8rem; }
    .chart-container { height: 250px; }
}

/* --- PRINT MODE --- */
@media print {
    #grade-calculator, .delete-btn, #addBtn, #imageInput, .filter-area, 
    #target-calculator, .action-bar, input[type="file"], .footer {
        display: none !important;
    }
    body, #profile-card, table, .chart-container, #result-area, .summary-card {
        background: white !important;
        color: black !important;
        box-shadow: none !important;
        border: 1px solid #ccc !important;
    }
    body { padding: 0; display: block; }
    .chart-container { height: 300px; border: none; }
    canvas { max-width: 100% !important; }
    h1, h2, h3, th, td, span { color: black !important; text-shadow: none !important; }
}

/* --- COFFEE BUTTON STYLING --- */
.coffee-btn {
    background: #FFDD00 !important; /* The Official BMC Yellow */
    color: #000000 !important; /* Black text for contrast */
    font-weight: 800; /* Extra bold */
    box-shadow: 0 4px 15px rgba(255, 221, 0, 0.3); /* Yellow Glow */
    border: 1px solid #e6c200;
}

.coffee-btn:hover {
    background: #ffe64a !important;
    transform: translateY(-3px) scale(1.05); /* Lifts higher than other buttons */
    box-shadow: 0 8px 25px rgba(255, 221, 0, 0.5);
}

/* Optional: A subtle wiggle animation to draw the eye every 5 seconds */
@keyframes wiggle {
    0%, 100% { transform: rotate(0deg); }
    25% { transform: rotate(-3deg); }
    75% { transform: rotate(3deg); }
}

.coffee-btn {
    animation: wiggle 2s ease-in-out infinite;
    animation-delay: 5s; /* Waits 5s, then wiggles */
}

/* Stats Row Styling */
.stats-row {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid rgba(255, 255, 255, 0.1); /* Subtle divider line */
}

.stat-badge {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--secondary-color);
    padding: 6px 15px;
    border-radius: 20px; /* Pill shape */
    font-size: 0.9rem;
    font-weight: 500;
}
.stat-badge span {
    color: white;
    font-weight: 800;
    margin-left: 5px;
}

/* --- DEMO VIDEO BUTTON (The "Glass Pill") --- */
.demo-btn {
    /* 1. Glass Background (Matches your theme) */
    background: rgba(255, 255, 255, 0.1) !important; 
    backdrop-filter: blur(5px);
    
    /* 2. Brand Border (Links it to your Identity) */
    border: 1px solid var(--primary-color); 
    color: var(--text-color) !important;
    
    /* 3. Shape & Size */
    border-radius: 50px; /* Pill Shape */
    padding: 8px 20px;   /* Slim and sleek */
    font-size: 0.9rem;
    font-weight: 500;
    
    /* 4. Layout */
    display: inline-flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.demo-btn:hover {
    /* 5. Hover Effect: Lights up with your Purple */
    background: var(--primary-color) !important; 
    box-shadow: 0 0 15px rgba(108, 92, 231, 0.6); /* Purple Glow */
    transform: translateY(-2px);
    border-color: transparent;
}